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| author | Arnaldo Carvalho de Melo <acme@redhat.com> | 2022-11-20 17:29:39 +0300 |
|---|---|---|
| committer | Arnaldo Carvalho de Melo <acme@redhat.com> | 2022-11-20 17:29:39 +0300 |
| commit | b3c39b1a96a67a7e246d562f44d04ce6f9ef878f (patch) | |
| tree | 6874debfde448db313bd7c53c3aca59687038c1f /drivers/android/binder_alloc.c | |
| parent | 63a3bf5e8d9e79ce456c8f73d4395a5a51d841b1 (diff) | |
| parent | 77c51ba552a1c4f73228766e43ae37c4101b3758 (diff) | |
| download | linux-b3c39b1a96a67a7e246d562f44d04ce6f9ef878f.tar.xz | |
Merge remote-tracking branch 'torvalds/master' into perf/core
To pick up fixes and check if libraries used that comes from other trees
continue to work with tools/perf, such as tools/lib/bpf.
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Diffstat (limited to 'drivers/android/binder_alloc.c')
| -rw-r--r-- | drivers/android/binder_alloc.c | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/drivers/android/binder_alloc.c b/drivers/android/binder_alloc.c index 1c39cfce32fa..4ad42b0f75cd 100644 --- a/drivers/android/binder_alloc.c +++ b/drivers/android/binder_alloc.c @@ -739,6 +739,12 @@ int binder_alloc_mmap_handler(struct binder_alloc *alloc, const char *failure_string; struct binder_buffer *buffer; + if (unlikely(vma->vm_mm != alloc->mm)) { + ret = -EINVAL; + failure_string = "invalid vma->vm_mm"; + goto err_invalid_mm; + } + mutex_lock(&binder_alloc_mmap_lock); if (alloc->buffer_size) { ret = -EBUSY; @@ -785,6 +791,7 @@ err_alloc_pages_failed: alloc->buffer_size = 0; err_already_mapped: mutex_unlock(&binder_alloc_mmap_lock); +err_invalid_mm: binder_alloc_debug(BINDER_DEBUG_USER_ERROR, "%s: %d %lx-%lx %s failed %d\n", __func__, alloc->pid, vma->vm_start, vma->vm_end, |